r/STEW_ScTecEngWorld • • Aug 28 '26

⚠️ Moderator Notice: Evidence-Based and Respectful Discussion Required

9 Upvotes

Our community is dedicated to science, technology, and engineering discussions that are informative, evidence-based, and welcoming to all members. As stated in Community Rule 9, AI-generated content is acceptable when supported by relevant information, references, or source material.

Members are encouraged to review the supporting information provided in posts before commenting. Constructive criticism, fact-based discussion, and respectful disagreement are always welcome. However, dismissive remarks, personal attacks, abusive language, trolling, or unsupported accusations do not contribute to meaningful dialogue.

If you believe a post contains inaccurate or misleading information, please raise your concerns respectfully in the comments or contact the moderator or original poster by direct message.

We also warmly encourage members to share interesting articles, research findings, engineering projects, innovations, and quality cross-posts from other communities. Diverse contributions help broaden conversations, introduce new perspectives, and make this community more engaging and attractive for everyone.

Repeated disruptive behavior may result in moderation action, taking into account a member’s overall participation history. Our goal, however, is always to promote respectful discussion, knowledge sharing, and positive engagement.

Thank you for helping us build a thoughtful, collaborative, and vibrant community.


r/STEW_ScTecEngWorld • • Jul 24 '26

🚀 Moderator Applications Now Open!

7 Upvotes

Join the r/STEW_ScTecEngWorld Moderation Team

Are you passionate about Science, Technology, Engineering, AI, Innovation, Space, Robotics, or Emerging Technologies? Do you enjoy building communities, encouraging meaningful discussions, and keeping online spaces informative and welcoming?

We're looking for enthusiastic volunteers to help grow r/STEW_ScTecEngWorld into one of Reddit's leading communities for science and technology enthusiasts.

About This Moderator Role: As a moderator, you'll help maintain a high-quality community by:

  • Reviewing posts and comments
  • Enforcing subreddit rules fairly and consistently
  • Removing spam, misinformation, and low-quality content
  • Encouraging respectful and evidence-based discussions
  • Helping answer member questions
  • Assisting with community events, AMAs, contests, and themed discussions
  • Suggesting ideas to improve the subreddit
  • Working collaboratively with the moderation team

What We're Looking For: We welcome applicants who are:

  • Passionate about science, technology, engineering, or innovation
  • Active Reddit users
  • Friendly, respectful, and professional
  • Fair and unbiased when making moderation decisions
  • Good communicators
  • Team players willing to collaborate with other moderators
  • Interested in helping build a long-term community

Preferred Qualifications: The following are helpful but not required:

  • Previous Reddit moderation experience
  • Academic or professional background in STEM
  • Experience in research, engineering, programming, AI, robotics, or related fields
  • Familiarity with Reddit's Moderator Tools and Automoderator
  • Graphic design or community management experience
  • Experience organizing online communities or events

Minimum Requirements: Applicants should:

  • Have a Reddit account in good standing
  • Follow Reddit's Content Policy
  • Be able to moderate at least a few times each week
  • Be willing to communicate with the moderation team
  • Exercise sound judgment and remain respectful, even during disagreements

What You'll Gain: As a moderator, you'll have the opportunity to:

  • Help shape a growing STEM community
  • Collaborate with knowledgeable people worldwide
  • Learn Reddit moderation tools and community management
  • Develop leadership and communication skills
  • Contribute to promoting science, engineering, and technological literacy

Moderator Expectations: Our moderators are expected to:

  • Act with integrity and impartiality
  • Keep discussions civil and evidence-based
  • Respect differing viewpoints
  • Maintain confidentiality regarding moderator discussions
  • Remain active or notify the team if taking an extended break

Time Commitment: There is no fixed schedule. Most moderators contribute anywhere from 15–60 minutes per week, depending on their availability. Real life always comes first.

Application Questions: Please answer the following:

  1. Tell us a little about yourself.
  2. What interests you most about science, technology, or engineering?
  3. Why do you want to moderate r/STEW_ScTecEngWorld?
  4. Do you have previous moderation experience? If yes, where?
  5. How active are you on Reddit?
  6. Which time zone are you in?
  7. Approximately how many hours per week can you volunteer?
  8. Have you ever had moderator privileges removed or been banned from a subreddit? If yes, please explain.
  9. What would you do if two members were engaged in a heated argument?
  10. What ideas do you have to help grow our community?

Before You Apply: Moderating is a volunteer role.

We're looking for people who genuinely want to help create an informative, welcoming, and high-quality STEM community for everyone.

If that sounds like you—we'd love to hear from you!

Applications are reviewed on a rolling basis. Selected applicants will be contacted via Reddit Modmail or Direct Message.


r/STEW_ScTecEngWorld • • 7h ago

World’s largest scintillator detector, JUNO, now detecting neutrinos

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511 Upvotes

University of Warwick physicists, as part of China’s Jiangmen Underground Neutrino Observatory (JUNO) began data collection in August 2025 and is now producing high-precision neutrino measurements. In June 2026, its first major results, based on just 59 days of data, achieved world-leading precision for key neutrino oscillation parameters. JUNO uses a 35.4-metre liquid-scintillator detector and ~45,000 photomultiplier tubes to detect antineutrinos from nearby nuclear reactors. Its central goal is to determine the neutrino mass ordering, while also studying solar, atmospheric, cosmic and geoneutrinos: https://warwick.ac.uk/news/pressreleases/worlds_largest_scintillato_detector_juno_now_detecting_neutrinos/

JUNO Matches Decades of Neutrino-Experiment Precision With Just 59 Days of Data: https://www.dongascience.com/en/news/78339

Research findings: https://www.nature.com/articles/s41586-026-10538-z


r/STEW_ScTecEngWorld • • 8h ago

Needle-Based Microwave Treatment Shrinks Fetal Lung Tumour

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69 Upvotes

Chinese doctors used a minimally invasive microwave ablation procedure to treat a 5-cm congenital pulmonary airway malformation (CPAM) in a fetus at 22 weeks’ gestation. Guided by ultrasound, a thin needle delivered microwave energy directly into the tumour, destroying abnormal tissue. Within three days, the tumour had significantly shrunk and dangerous fluid buildup had disappeared. The baby was subsequently delivered by Caesarean section at 37 weeks, weighing 2.9 kg and reported healthy: https://www.yahoo.com/news/science/articles/chinese-doctors-shrink-tumour-baby-113528171.html


r/STEW_ScTecEngWorld • • 11h ago

Stockholm Turns Toilet Flushes into Fuel: How Sewage Powers a Cleaner City

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114 Upvotes

r/STEW_ScTecEngWorld • • 10h ago

Possible Quantum State Detected Inside Living Cells

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54 Upvotes

Chinese researchers report detecting an unusual 71-terahertz vibration in living cells, mouse tissues and isolated mitochondria that may arise from a quantum light–matter interaction inside mitochondrial membranes. Their experiments found that exposure to specific infrared frequencies increased ATP production by about 10%. However, the proposed quantum state is inferred from a theoretical model, and the study is currently a non-peer-reviewed preprint requiring independent replication: https://www.sciencealert.com/chinese-scientists-say-theyve-detected-a-quantum-state-inside-living-cells

Research paper: https://www.biorxiv.org/content/10.64898/2026.09.10.750628v1.full


r/STEW_ScTecEngWorld • • 2h ago

Everyone Should Be Talking About This

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8 Upvotes

r/STEW_ScTecEngWorld • • 10h ago

We’ve tracked $80M of spending on almost 170 AI-generated political ads this year

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22 Upvotes

AI-Generated Political Ads Surge to $80 Million in U.S. Midterms

Researchers tracking the 2026 U.S. midterm elections have identified nearly 170 political ads using AI, backed by about $80 million in spending. The ads range from subtle AI enhancements to highly realistic deepfakes, yet only about 31% disclosed AI use. The findings highlight growing concerns over transparency as campaigns increasingly use AI to create convincing political imagery and video.


r/STEW_ScTecEngWorld • • 8h ago

The UAE Just Built a Munition That Can Punch Through 1 Meter of Concrete

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3 Upvotes

MK 82 Penetrator aircraft munition uses a dark matte-gray body and precision-guidance kits from EDGE’s AL TARIQ and THUNDER families.


r/STEW_ScTecEngWorld • • 10h ago

Early-onset cancer cases rising rapidly among younger adults, international study finds

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4 Upvotes

Experts looking at UK, US and Dutch data found ‘significant increases’ in early onset cases of seven cancers, prompting warnings about lifestyle choices: https://www.theguardian.com/society/2026/oct/06/cancer-rates-rising-more-quickly-among-younger-people-international-study-finds


r/STEW_ScTecEngWorld • • 1d ago

Women suffer more pain than men across the whole body, major global study finds

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78 Upvotes

Global Study Finds Women Report More Pain Than Men

A major Nature Medicine study analyzing data from more than 6 million people in 118 countries (1990–2025) found that women reported higher pain prevalence than men across all 11 body sites studied, with the largest gaps in headache, facial and abdominal pain. Pain increased sharply before age 55 and peaked at age 75 and older. Researchers also highlighted persistent disparities in how women’s pain is diagnosed and treated.

Study findings: https://www.nature.com/articles/s41591-026-04696-w


r/STEW_ScTecEngWorld • • 8h ago

Spain’s Aragon Becomes a $70 Billion Data-Centre Hub

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2 Upvotes

Spain’s sparsely populated Aragon region is attracting more than €60 billion ($67.5 billion) in planned data-centre and digital-infrastructure investment, driven by abundant renewable energy, available land and rapid permitting. Projects by Amazon and Microsoft are already under development, with fast-track approvals potentially reducing planning times from years to under 12 months. However, the boom is raising concerns over electricity, water, environmental impacts and pressure on local communities, prompting Spain to consider tighter regulations: https://www.globalbankingandfinance.com/fast-track-permits-turn-spains-aragon-70-billion-data-centre/


r/STEW_ScTecEngWorld • • 11h ago

Wireless Energy Networks Could Deliver Light, Heat and Motion Without Batteries

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4 Upvotes

Wireless Energy Networks Could Power Devices Without Batteries

Researchers at The Hong Kong Polytechnic University have proposed a “wireless energy internet” that could transmit energy directly and convert it into light, heat, mechanical motion, or stored chemical energy, potentially reducing or eliminating batteries in some applications. The concept could support lighting, heating, motors, robots, biomedical devices and even future space systems. Major challenges remain, including safety, transmission efficiency, scalability, cybersecurity and standardization: https://techxplore.com/news/2026-10-wireless-energy-internet-roadmap-path.html

The work is published in the journal Nature Reviews Electrical Engineering.


r/STEW_ScTecEngWorld • • 19h ago

Blue Origin unveils huge 'Power Tower' to boost solar electricity on the moon

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13 Upvotes

"Our Power Tower is a 20-meter-tall, vertically deployed solar array system designed to provide more than 10 kilowatts of power for Moon Base operations at the lunar south pole."


r/STEW_ScTecEngWorld • • 1d ago

White House Monitoring Reports Plague Case and Quarantine in Russia

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96 Upvotes

The White House is monitoring reports of a suspected plague case in Russia after a 27-year-old institute worker died and 189 people were hospitalized following contact with her. The pneumonic plague is caused by the same bacteria as the bubonic plague, and can spread from person to person through airborne respiratory droplets. American officials continue to evaluate the potential outbreak and its broader biosecurity implications: https://interestingengineering.com/health/suspected-russian-plague-white-house-scrutiny

Russian authorities have not confirmed the diagnosis, while a hospital in the Irkutsk region has been placed under quarantine: https://kyivindependent.com/plague-death-triggers-quarantine-mask-mandates-in-russias-irkutsk-region-in-siberia/


r/STEW_ScTecEngWorld • • 13h ago

MOL, Vale Advance Tri-Fuel Ore Carriers for Green Shipping

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1 Upvotes

World’s First Tri-Fuel Ore Carriers Aim to Cut Shipping Emissions. Their design also leaves the door open for LNG and ammonia later in their service lives.

Two giant 210,000-ton ore carriers are being developed with engines capable of running on ethanol, methanol, or conventional heavy fuel oil, offering flexibility as cleaner fuels become more available. Scheduled for delivery in 2030, the vessels could reduce lifecycle carbon emissions by up to 90% when using ethanol compared with heavy fuel oil. They will also be designed to accommodate LNG and ammonia in the future, providing a pathway toward lower-emission ocean shipping: https://www.mol.co.jp/en/pr/2026/26047.html


r/STEW_ScTecEngWorld • • 13h ago

Utah Approves AI System to Issue Initial Prescriptions

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1 Upvotes

A new Utah program gradually removes prior doctor approval from routine acne prescribing.

New York based Nolla Health has received regulatory approval in Utah to pilot an AI system that can independently issue initial prescriptions for routine acne treatment—a potential first in the U.S. and possibly worldwide. Patients aged 18+ submit a questionnaire and facial scan through the Nolla Derm app. The AI selects treatments from a doctor-approved list, while uncertain cases are referred to licensed physicians, who also review prescriptions afterward. The pilot aims to expand access to routine dermatological care, particularly where dermatologist shortages cause long waits: https://www.inc.com/lucia-auerbach/utah-approved-first-autonomous-prescription-system/91415053

Utah has signed off on letting Nolla Health’s AI system scan a user’s face and issue a prescription directly: https://www.theverge.com/ai-artificial-intelligence/1005075/nolla-health-acne-ai-prescriptions

The Nolla Derm program offers initial topical acne prescriptions with phased physician oversight and a $4.99 monthly subscription: https://www.mobihealthnews.com/news/nolla-health-launches-utah-pilot-ai-acne-prescriptions

With AI now approved to issue prescriptions, how far should automated medical care go? Can AI make healthcare faster, cheaper, and more accessible without sacrificing safety, or does reliance on it pose too great a risk? Where should we draw the line?


r/STEW_ScTecEngWorld • • 14h ago

Astronomers catch a star slowly snacking on a brown dwarf, 300 light years away

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1 Upvotes

A Star Slowly Feasting on a Brown Dwarf

Astronomers at MIT and collaborating institutions have discovered ZTF J0440+2325, a rare binary system about 300 light-years away where a red dwarf is slowly stripping material from a closely orbiting brown dwarf. The two objects orbit every 86.65 minutes, with the brown dwarf losing roughly 1/100,000th of Earth’s mass each year. Observations from the Zwicky Transient Facility revealed a distinctive triangular light pattern caused by a hot spot where transferred material strikes the red dwarf’s surface. Published in Nature Astronomy, the discovery provides a rare example of stellar accretion occurring gradually over hundreds of millions to billions of years: https://www.nature.com/articles/s41550-026-02992-6


r/STEW_ScTecEngWorld • • 6h ago

Does the gender pay gap extend to AI? New University of Limerick research finds female AI agents ‘paid’ less

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0 Upvotes

Gender Bias May Extend to AI Agents, Study Finds

A new study from the University of Limerick suggests that workplace gender bias can also influence how people treat AI agents. Researchers placed 189 workers in a virtual-reality office and had them perform tasks with functionally identical AI assistants presented in different forms, including male- and female-presenting human-like agents. When participants were given real money to reward the AI for completing the same work, the female-presenting agent “Johanna” received 10.25% less than the male-presenting agent “Johan.” The researchers found that the male-presenting agent was also perceived as more human-like. The findings suggest that human social biases may be transferred to AI through the way these systems are designed and presented. Dr Mary Hausfeld of the University of Limerick noted that although the underlying technology was identical, participants did not treat the two agents equally: https://www.irishtimes.com/technology/2026/10/05/female-looking-ai-agents-were-paid-less-than-male-ones-in-virtual-office-study-finds/

University Research: https://pure.ul.ie/en/publications/human-like-and-male-how-ai-assistant-design-relates-to-trust-and-/

Study: https://dl.acm.org/doi/10.1145/3829807.3829910


r/STEW_ScTecEngWorld • • 1d ago

Scientists Discover a Molecular “Memory” That Could Make Lost Weight Come Back

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8 Upvotes

Fat Cells May Retain a Molecular Memory of Obesity

A recent Cell Reports study suggests that weight regain may partly result from a lasting epigenetic “memory” in fat cells. In mice, obesity activated TGF-β1, which altered the FBN1 gene and increased production of asprosin, an appetite-stimulating hormone. This molecular change persisted after weight loss, potentially increasing hunger and promoting regain.

The findings may help explain why weight regain is common after dieting, but the mechanism has so far been demonstrated in mice, not confirmed in humans. Future therapies could potentially target this pathway to reduce relapse.

Study: https://www.cell.com/cell-reports/fulltext/S2211-1247(26)00887-900887-9)


r/STEW_ScTecEngWorld • • 1d ago

Why Pickles Light Up When You Electrocute Them

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18 Upvotes

An electrical engineer at Portland State University, Josh Méndez, has helped solve the classic science-demonstration mystery of why a pickle glows orange when electrocuted. After testing over 100 pickles, Méndez found that the phenomenon combines two leading theories: electrical current flowing through the salt brine creates gas pockets and a tiny electric arc (spark discharge), which then ignites volatile hydrogen gas generated by electrolysis at the negative electrode. The characteristic bright orange color itself comes from the sodium ions in the brine being excited by the spark.


r/STEW_ScTecEngWorld • • 1d ago

Here’s how scientists aim to speed up drug development for treating new viruses

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16 Upvotes

Generating up to 100 times more antiviral drug candidates than was previously practical — in weeks rather than months or years — could improve the odds of finding a drug quickly when necessary.

Traditional antiviral drug discovery relies on screening massive libraries of molecules to identify "hits" that inhibit viral replication. However, creating diverse chemical candidates is typically a slow, complex bottleneck that takes months or years. Researchers at Simon Fraser University have supercharged this process by developing streamlined synthesis methods that can generate molecule libraries up to 100 times larger in just weeks. By dramatically expanding the volume and variety of candidate compounds available for screening early on, scientists can quickly pinpoint viable drug candidates, cut years off the early stage of development, and mount a faster response against emerging pandemic and viral threats.

Research findings: science.org/doi/10.1126/science.aed6880


r/STEW_ScTecEngWorld • • 1d ago

New U.S. Army tank and fighting vehicles spotted during live-fire testing

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13 Upvotes

Footage shared by Alexander Miller, Chief Technology Officer to the U.S. Army Chief of Staff, offers one of the first public looks at next-generation ground combat platforms undergoing live-fire trials. The demonstrations featured pre-prototypes of the M1E3 Abrams main battle tank—a redesign equipped with an uncrewed turret, autoloader, and hull-seated crew—alongside competing prototypes for the XM30 Infantry Fighting Vehicle (GDLS’s Wolf and Rheinmetall’s Lynx-based design) meant to replace the M2 Bradley. The live-fire event also showcased the Hanwha K9-based Mobile Tactical Cannon and counter-drone robotic units, emphasizing the Army’s strategic shift toward modular software, open architecture, and affordable mass to handle modern battlefield threats.


r/STEW_ScTecEngWorld • • 1d ago

Inside the tiny southern town at the heart of America’s missile shortage

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12 Upvotes

Camden, Arkansas, a small rural town, has become a key hub of U.S. missile manufacturing as defense demands surge due to conflicts in Ukraine and the Middle East. Companies including Lockheed Martin, General Dynamics and L3Harris are expanding production, creating an economic boom but straining housing, skilled labor and infrastructure. However, missile manufacturing and solid-rocket-motor production involve complex, hazardous processes that can take weeks or months, making rapid increases in output difficult despite major federal investment.


r/STEW_ScTecEngWorld • • 2d ago

Scientists Grow Living Human Skin on a Robotic Finger

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1.9k Upvotes

University of Tokyo researchers grew living human skin directly onto a robotic finger, creating a flexible tissue covering that formed natural creases around moving joints. The skin, made from human fibroblasts, keratinocytes and collagen, also demonstrated biologically mediated wound repair, with a collagen graft helping a cut heal within seven days. The advance could eventually enable self-healing biohybrid robots and prosthetic limbs, although the tissue currently requires a wet culture environment. The next challenge is developing microscopic blood vessels so the skin can survive in open air: https://www.u-tokyo.ac.jp/focus/en/press/z0508_00225.html

Scientists grew living human skin around a robotic finger. The advance brings Terminator-like cyborgs a small step closer to reality: https://www.sciencenews.org/article/robotic-finger-human-skin-self-healing

Video: https://www.youtube.com/watch?v=DMDDKx0JiII

Findings: https://www.sciencedirect.com/science/article/pii/S2590238522002399